Orynkanova Z, Zh., and R.A. Baizholova. “Analysis of Environmental Expenditure in Kazakhstan”. Economic series of the Bulletin of L.N. Gumilyov ENU, no. 2 (January 20, 2023): 54–64. Accessed February 23, 2026. https://bulecon.enu.kz/index.php/main/article/view/213.